<template>
  <div>
    <el-row type="flex" justify="end">
      <el-select
        v-model="currentYear"
        size="small"
        style="width: 120px"
        @change="dateChange"
      >
        <el-option v-for="item in yearList" :key="item" :label="item+'年'" :value="item" />
      </el-select>
      <el-select
        v-model="currentMonth"
        size="small"
        style="width: 120px; margin-left: 10px"
        @change="dateChange"
      >
        <el-option v-for="item in 12" :key="item" :label="item+'月'" :value="item" />
      </el-select>
    </el-row>

    <el-calendar v-model="currentDate" :first-day-of-week="7">
      <template #dateCell="{data, date}">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  filters: {
    getDay(value) {
      const dayStr = value.split('-')[2]
      // startsWith校验字符串是否以给定的字符开始
      return dayStr.startsWith('0') ? dayStr.substr(1) : dayStr
    }
  },
  data() {
    const now = new Date()
    const month = now.getMonth() + 1
    const year = now.getFullYear()
    return {
      currentDate: now, // 当前天
      currentMonth: month, // 当前月份
      currentYear: year, // 当前年份
      yearList: []
    }
  },
  created() {
    this.yearList = this.getYearList()
  },
  methods: {
    //   年份
    getYearList() {
      const yearList = []
      for (let item = 0; item < 11; item++) {
        yearList.push(this.currentYear - 5 + item)
      }
      return yearList
    },
    dateChange() {
      // 用年月组成新日期, 填入 this.currentDate
      const newDate = `${this.currentMonth}-${this.currentYear}`
      this.currentDate = new Date(newDate)
    },
    isWeek(val) {
      return (val.getDay() === 6 || val.getDay() === 0) && val.getMonth() + 1 === this.currentMonth
    }
  }
}
</script>

<style  scoped>
 ::v-deep .el-calendar-day {
  height:  auto;
 }
 ::v-deep .el-calendar-table__row td,::v-deep .el-calendar-table tr td:first-child,  ::v-deep .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
 ::v-deep .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
 ::v-deep .el-calendar__header {
   display: none
 }
</style>
